Format of Code. Types of Code and Breakdown Levels. In consideration of the various requirements placed on the identification of plants, sections of plants and . Assignment of System Codes to Mechanical Equipment and Measuring Circuits. .. Brüter – Kernkraftwerkgesellschaft mbH • Siemens AG, Corporate Groups E. The Siemens Kraftwerk-Kennzeichen-System (KKS), abridged version, stations , KKS has three different types of code: Process-related code Process-related.
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D — Control systems A Grid and distribution systems B Power transmission and auxiliary power supply C Instrumentation and control systems D Instrumentation and control systems E Conventional fuel supply and residues disposal F Handling of nuclear siemena G Water supply and disposal H Conventional heat generation J Nuclear heat generation K Nuclear auxiliary systems L Steam, water, gas cycles M Main machine sets N Process energy supply for external users e.
YB71 XB72 Control room; close, down Where measured data are corrected e. A – Grid and distribution systems for electric power plants, thermoelectric power plants and heating plants R — Gas generation and treatment Deviations with respect to the type of data character A or N and their quantity are allowed by DIN Part 2 and are subject to agreement between the parties to the project.
Special guidelines apply to data characters G, F0 and A3.
APPENDIX I: KKS SYSTEM
G — Water supply and disposal In such instances the first character of FN has a classifying purpose. Redundant zeros must be written.
Component Code A component designated in breakdown level 3 is a part of equipment unit identified in breakdown level 2. Control and Instrumentation Equipment I – 5.
Structure Code Serial no. When technical installations differs only with counting signs of installation it is necessary to assign to a secondary variable counting signs like for one of those installations e.
Click here to sign up. Originally the titles of the breakdown levels were based on the process-related code: When creating in DCS systems secondary variables of the same technical installation that differs with counting codd for breakdown level 2, the same rules are to apply as for this variables created from the same installation.
Order according to voltage levels, counted from higher voltages to lower.
The additional code can be omitted. D — Loop control circuits A Grid and distribution systems B Power transmission and auxiliary power supply C Instrumentation and control equipment D Instrumentation and control equipment for use only when function codes CM sieemens CT are insufficient for the identification of system combinations Kk subdivisions in F2 and F3, are given in the applicable Function Key.
Usually the code is written above the line: Codes may be spaced by the insertion of blank spaces or interposing lines at predetermined points and by multiple- line notation: Conventional heat generation Unit control system L. Junction Boxes On breakdown level 1, junction boxes receive the code of the structure and floor on which they are installed.
X special structures, Y bridge structures, Z ducting structures. The direction of numbering is vertical from the lowermost floor upwards.
Equipment unit classification Serial no. Valves Valves are identified on the equipment unit level by the letters AA regardless of their type, design or actuator.
Equipment unit identified in breakdown level 2 belongs always to a system identified in breakdown level 1. System One should remember, that the code of a system must consist of five symbols: The alphabetical symbols of this breakdown level are used to classify and divide the overall plant into subsystems, systems or building structures.
Subgroups The classifying coding letters and designations are established on a non-project-specific basis in the KKS keys, namely as: F kkks Indirect measuring circuits Installation Unit Code Serial no. Such modifications are subject to agreement between the parties to the project. Log In Sign Up. AK over a separate position code is to be established, e. They are made up of classifying and numbering code elements.
The result was a series of operations whose sequence was often irrational.